Portable electronic apparatus having external connector fixed at internal circuit board

ABSTRACT

A portable electronic apparatus includes: a box-type case having an opening at its rear face and upper face; a circuit board having a receiving portion and an engaging hole formed adjacent to the receiving portion, the circuit board being installed inside the case; a key board unit positioned at an upper surface of the case; and a connector having a front face with a plug inserting portion, a side face having a fixing piece and a lower face, wherein the lower face of the connector penetrates the receiving portion and is fixed at the circuit board, and the plug inserting portion of the connector faces the opening. Since the connector is positioned penetrating the receiving portion formed at the circuit board, the connector may be positioned at about the middle position of the connector, to make the whole product thin. In addition, in case where a flexible printed circuit is used to connect the connector and the circuit board, the plurality of terminals included in the connector can be connected simply with the circuit board and interference with other components can be minimized.

BACKGROUND OF THE INVENTION

[0001] 1. Field of the Invention

[0002] The present invention relates to a portable electronic apparatushaving an external connector fixed at an internal circuit board, andmore particularly to an electronic apparatus having a connector suitableto an ultra-thin product for providing an electrical connection for adata communication.

[0003] 2. Description of the Background Art

[0004] Generally, electric apparatuses includes a circuit board (PCB) inits main body to perform various functions and a connector fixed bysoldering at the circuit board to connect a cable such as a LAN or aMODEM.

[0005] U.S. Pat. No. 4,978,317 and U.S. Pat. No. 5,613,873 disclose atechnique related to such a connector, and FIG. 1 is a perspective viewof a partial section of a connector presented in the U.S. Pat. No.4,978,317.

[0006] With reference to FIG. 1, a connector 1 includes a housing 3 in arectangular shape contouring the outer case and a plug inserting portion5 to which a plug (not shown) of a cable is inserted for a connection.

[0007] A plurality of conductors 7 are formed at a portion of inner sideof the plug inserting portion 5 for electric connection with the plug.The connectors 7 penetrate the housing 3 from one inner side of the pluginserting portion 5, so that connection leads 7 a are protrusivelyformed at one face (upper side in FIG. 1).

[0008] The connection leads 7 a protrusively formed at one face of thehousing 3 are inserted into holes formed at the circuit board (PCB) tobe protruded to the other side of the circuit board. The protrudedconnection leads 7 a and a circuit pattern formed on the circuit board(PCB) are soldered to thereby connect the circuit board (PCB) and theconnector 1.

[0009] The connector 1 further includes an LED 9 for displaying atransmission state of a signal transmitted according to a connectionbetween the connector 1 and the plug. The LED 9 is installed exposed inparallel at one side, that is, at the side where the plug insertingportion 5 is formed. The terminals 9 a of the LED 9 are protrusivelyformed at the same face where the conductors 7 are protruded, so as tobe inserted into the holes of the circuit board (PCB) and fixedlyconnected by soldering, like the connection leads 7 a.

[0010] However, the conventional connector constructed as described hasthe following problems.

[0011] That is, being used to connect the circuit board and an externalproduct, the connector maintains an interface as the terminals protrudedat one face of the housing are directly soldered or mounted on an uppersurface of the circuit board.

[0012] However, in the above structure, referring to the height of theproduct, the connector is positioned on the upper surface of the circuitboard, requiring an installation space in consideration of the thicknessand the height of the circuit board (PCB) itself.

[0013] In addition, an installation space is required according to theheight of various components attached on the under surface of thecircuit board, and besides, a space is also required to prevent anelectric short between elements.

[0014] Due to these factors, the conventional connector has manyproblems.

[0015] For example, first, it is hardly adoptable to a ultra-thinproduct such as a super-thin lap-top computer which is restricted in itsheight.

[0016] Secondly, since the exposing hole is formed only at one side ofthe main body to expose the plug inserting portion of the connectoroutwardly, it is difficult to reduce the whole thickness of the mainbody.

[0017] Thirdly, as the connector is fixed at the circuit board (PCB) bythe connection leads 7 a and 9 a, the fixed state of the connector isnot reliable, so that when the connection operation of the plug isrepeatedly performed, the soldering between connection leads and thecircuit pattern of the circuit board (PCB) is damaged, causing a openingphenomenon. In case of a few number of the connection leads, the housingis made enlarged to obtain a large contact area with respect to thecircuit board, which, however, results in the enlargement of theconnector against the intention to obtain a compact size product.

[0018] Fourthly, the connecting wires are used to connect the connectionleads and the circuit board. In such a case, the connection leads can beprocessed by clamping, but the connection leads of the two LEDs shouldbe directly soldered with the wire. In addition, in a specific case,more than two wires should be simultaneously clamped or soldered withone connection leads, there occur many defectives. As a wire becomesdefective, it is not possibly reused, causing an increase in a unitcost.

[0019] Fifthly, in case of using the dip-soldering type connector, aninterface cable to be connected to a LAN card (3 Combo, Intel Combo,X-Combo) and a connector are additionally required, causing an increasein the number of components.

[0020] The above references are incorporated by reference herein whereappropriate for appropriate teachings of additional or alternativedetails, features and/or technical background.

SUMMARY OF THE INVENTION

[0021] Therefore, an object of the present invention is to provide aportable electronic apparatus having a connector fixing structureavailable to a ultra-thin product.

[0022] Another object of the present invention is to provide a connectorallowing a small space for connection with a circuit board and beingless interfered with other components.

[0023] To achieve at least the above objects in whole or in parts, thereis provided a portable electronic apparatus including a box-type casehaving an opening at its rear face and upper face; a circuit boardhaving a receiving portion and an engaging hole formed adjacent to thereceiving portion, the circuit board being installed inside the case; akey board unit positioned at an upper surface of the case; and aconnector having a front face with a plug inserting portion, a side facehaving a fixing piece and a lower face, wherein the lower face of theconnector penetrates the receiving portion and is fixed at the circuitboard, and the plug inserting portion of the connector faces theopening.

[0024] To achieve at least these advantages in whole or in parts, thereis further provided a portable electronic apparatus including a box-typelower case having a rear face with a first opening, the box-type lowercase being combined with an upper case; a box-type upper case having arear face with a third opening and an upper face; a circuit board havinga receiving portion and engaging holes formed adjacent to the receivingportion, the circuit board being installed in the lower case; a keyboard unit positioned at an upper face of the upper case; a screendisplay unit rotatably supported by the upper case; and a connectorhaving a front face with a plug inserting portion, a side face having afixing piece and a lower face, wherein the bottom of the connectorpenetrates the receiving portion, to be fixed at the circuit board, andthe plug inserting portion of the connector faces the first opening andthe third opening.

[0025] To achieve at least these advantages in whole or in parts, thereis further provided a portable electronic apparatus including a box-typelower case having a rear face with first and second openings, thebox-type lower case being combined with the upper case; a box-type uppercase having rear face and upper face with third and fourth openings; acircuit board having a receiving portion and engaging holes formedadjacent to the receiving portion, the circuit board being installed inthe lower case; a key board unit positioned at an upper face of theupper case; a screen display unit rotatably supported by the upper case;and a connector having a front face with first and second plug insertingportions, a side face having a fixing piece and a lower face, whereinthe bottom of the connector penetrates the receiving portion, to befixed at the circuit board, and the first plug inserting portion and thesecond plug inserting portion face the first openings.

[0026] To achieve at least these advantages in whole or in parts, theconnector of the present invention includes a housing having a pluginserting portion opened at a front face, a mounting groove formed fromthe front face to a rear face at an upper face, a cut-out portionconnected to the mounting groove across the mounting groove at an upperportion of the rear end and a fixing piece integrally formed with thehousing for engagement with the circuit board at the right and the leftside of the housing; and a connector extendedly formed from the pluginserting portion to the cut-out portion, and electrically connectedwith a plug inserted into the plug inserting portion, one end thereofbeing protruded to the cut-out portion.

[0027] Additional advantages, objects, and features of the inventionwill be set forth in part in the description which follows and in partwill become apparent to those having ordinary skill in the art uponexamination of the following or may be learned from practice of theinvention. The objects and advantages of the invention may be realizedand attained as particularly pointed out in the appended claims.

BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The invention will be described in detail with reference to thefollowing drawings in which like reference numerals refer to likeelements wherein:

[0029]FIG. 1 is a partial perspective view showing the construction of aconnector in accordance with a conventional art;

[0030]FIG. 2 is a perspective view showing an outer case of a ultra-thintype lap-top computer;

[0031]FIG. 3 is a perspective view showing a use state of the ultra-thintype lap-top computer;

[0032]FIG. 4 is a plan view showing a rear side of the ultra-thin typelap-top computer;

[0033]FIG. 5 is a sectional view showing the construction of a connectorin accordance with a preferred embodiment of the present invention;

[0034]FIG. 6 is a plan view showing the construction of the connector inaccordance with the preferred embodiment of the present invention;

[0035]FIG. 7 is a schematic exploded perspective view showing that ahousing of the connector and mounting of the housing at a circuit boardin accordance with the preferred embodiment of the present invention;

[0036]FIG. 8 is a perspective view showing a coupling state of theconnector, the circuit board and a case in accordance with the preferredembodiment of the present invention; and

[0037]FIG. 9 is a perspective view showing a state that the connector ismounted at the circuit board in accordance with the preferred embodimentof the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0038] A preferred embodiment of an installation structure for aconnector of a portable electronic apparatus having an externalconnector fixed at an internal circuit board (PCB) and the connectorwill now be described with reference to the accompanying drawings.

[0039]FIGS. 2 through 9 show a portable electronic apparatus having anexternal connector fixed at an internal circuit board adopted to aultra-thin type lap-top computer in accordance with a preferredembodiment of the present invention.

[0040] The construction of the portable electronic apparatus having anexternal connector fixed at an internal circuit board (PCB) will now bedescribed.

[0041] With reference to FIGS. 2 through 4, the ultra-thin type lap-topcomputer 100 has a box type body 101 and a flat screen display unit 102.

[0042] The body 101 includes a plastic upper case 103 and lower case104.

[0043] The upper case 103 includes a first front face 105 and a firstside face 107, and the lower case 104 includes a second front face 106and a second side face 108.

[0044] As a data storage unit detachably combined with the body 101, anoptical disk driver 119 is positioned at a side of the second side face108 of the lower case 104. A floppy disk driver 120 is disposed at aportion of the upper case 103, at the very upper position of the opticaldisk driver 119.

[0045] At the first front face 105 and the second front face 106 of theupper case 103 and the lower case 104 constructing the front face of thebody 101, two speakers 121 are disposed over the upper case 103 and thelower case 104.

[0046] Referring to FIG. 4, the upper case 103 and the lower case 104 ofthe body 101 also includes the a first rear face 109 and a second rearface 110 at the opposite side of the first front face 105 and the secondfront face 106.

[0047] The first rear face 109 and the second rear face 110 are formedby being successively extended from the first side face 107 and thesecond side face 108. As the first rear face 109 of the upper case 103and the second rear face 110 of the lower case 104 are combined, therear side is formed.

[0048] A plurality of connection ports are installed at the rear side soas to be connected with an external instrument.

[0049] The connectors include a power connection port 122, a parallelport 123, a serial port 124, a video port 125, a keyboard port 126 and amouse port 127, a LAN connecting connector 128 and a modem port 129.These connectors are connected to the circuit board 90 installed insidethe body 101.

[0050] Referring to FIG. 3, the screen display unit 102 is rotatablyinstalled at a hinge unit 114 formed at both sides of the rear end ofthe body 101, forming a closed state as shown in FIG. 2 and an openedstate as shown in FIG. 3.

[0051] The structure of the screen display unit 102 includes a very thinrectangular body 115 consisting of a rectangular case 117 metal platedfor shielding at its inner surface and connected to the hinge unit 114,a liquid crystal display device 118 fixedly installed in the case 117and a cover 116 combined with the case 117, covering the outer marginalportion of the display device 118 with its central portion exposed.

[0052] The display device 118 is connected to the circuit board 90installed in the body 101 by a flexible printed circuit (FPC) (notshown).

[0053] The upper case 103 of the body 101 has an upper face 111 formedbent successively at the end portion of the first side face 107 and thefirst front face 105 from the upper portion, and a key board unit 112having a plurality of keys 113 are detachably installed at the upperface 111.

[0054] The construction of the connector which connected a LAN or amodem cable adopted to a ultra-thin lap-top computer 100, a portableelectronic apparatus, having an external connection connector fixed atthe internal PCB.

[0055] First, LAN connection connector 20 is shown in FIG. 5.

[0056] A housing constructing the connector 20 has a rectangularparallelepiped shape. A plug inserting portion 32 is formed at the frontwall 30 a of the housing 30, into which a plug (not shown) of LAN or amodem cable is inserted.

[0057] At the upper wall 30 c of the housing 30, an LED receiving groove34 is formed long from the front wall 30 a of the housing 30 to the rearwall 30 b. An LED opening and supporting portion 34 a is formed to bemade small at a portion where it approaches the front face 30 a of thereceiving groove 34.

[0058] Two LED receiving grooves 34 formed in parallel at the left side30 e and right side 30 f. A cut-out portion 36 connected to the LEDreceiving groove 34 from the left side wall 30 e of the housing 30 tothe right side wall 30 f, that is, across the direction in which the LEDreceiving groove 34, is formed at a lower stage than the part of LEDreceiving groove 34 at the rear end of the housing 30.

[0059] A connection terminal 40 is installed for electrical connectionwith the plug (not shown) in the plug inserting portion 32 of thehousing 30.

[0060] The connection terminal 40 penetrates the inner side of the lowerwall 30 d of the housing and bent by 90° toward the upper face 30 c sothat its one end portion (a connection lead) 40 a is protrusively formedto an upper surface 36 a of the cut-out portion 36.

[0061] The connection terminal 40 is slanted at a predetermined angleinwardly in the plug inserting portion 32, so that when the plug (notshown) is inserted, the connection terminal 40 is elastically deformedand tightly combined to the terminal of the plug.

[0062] The connection terminal 40 is formed by plural numbers such as 4,6 and 8 ones depending on a type of a connector, that is, acommunication module.

[0063] The connection terminal 40 is inserted to be integrally formedwith the housing 30 when the housing 30 is molded in an insert-moldingmethod.

[0064] The LEDs 45 are installed in the housing 30 to display theconnection state and the operation state with respect to the plug (notshown). The front end of the LED 45 is positioned at the front end ofthe LED receiving groove 34, that is, at the LED opening and supportingportion 34 a at the side of the front wall 30 a, so that it can beviewed from the front face of the housing 30.

[0065] The LED opening and supporting portion 34 a is formed a bitsmaller that the front end of the LED 45 so that when the front end ofthe LED 45 is inserted into the LED opening and supporting portion 34 a,the front end of the LED 45 is firmly fixed to the LED opening andsupporting portion 34 a.

[0066] The LED terminal 45 a formed at the rear end of the LED 45 isextended to the rear wall 30 b of the housing 30 within the LEDreceiving groove 34 and the end portion thereof is protruded to thefront surface 36 b of the cut-out portion 36.

[0067] In order to block an electronic wave from flowing to the lowerwall 30 d of the housing 30, a shielding plate 70 is mounted tointegrally cover the front wall 30 a and the upper wall 30 c.

[0068] The shielding plate 70 contacts the lower case 104 in view ofimprovement of an EMI performance.

[0069] A shielding end portion 70 a is protrusively formed to the frontsurface 36 b of the cut-out portion 36 at the end of the shielding plate70. The upper surface of the shielding plate 70 supports the LED 45installed at the LED receiving groove 34 of the housing 30 upwardly toprevent the LED 45 from releasing.

[0070] With reference to FIG. 6, a flexible cable 60 b is installedincluding a flexible cable 60 a for a circuit board LAN cable and aflexible cable 60 b for a docking LAN cable which are integrally formed.

[0071] The flexible cable 60 a for a circuit board LAN cable serves totransmit a signal between the connector 20 and the circuit board 90, andthe flexible cable 60 b for a docking LAN cable serves to transmit asignal between the connector 20 and a docking system (not shown). Oneend portion 40 a of the connection terminal 40, the LED terminal 45 a ofthe LED 45, the shield terminal 70 a of the shielding plate and a pad 61of the flexible printed circuit 60 are connected by soldering to theflexible printed circuit 60, to transmit a signal.

[0072] With reference back to FIG. 5, a reinforcement film 50 is fixedlyattached at the bottom surface of the pad 61 of the flexible printedcircuit 60 at a distance from the tip 62 of the pad 61, and the tip 62of the pad 61 is readily bent without the reinforcement film 50.

[0073] The pad 61 is tightly attached on the upper surface 36 a of thecut-out portion 36, so that the end portion 40 a of the connectionterminal 40 exposed on the upper surface 36 a penetrates the pad 61, soas to be exposed, and the connection end portion 40 a and a circuitpattern of the flexible printed circuit 60 are connected by soldering.

[0074] Thereafter, the tip 62 of the pad 61 is bent to be tightlyattached on the front surface 36 b of the cut-out portion 36, so thatthe LED terminal 45 a and the shield terminal 70 a of the shieldingplate penetrate the tip 62 of the pad 61 and is exposed. The exposed LEDterminal 45 a and the shield terminal 70 a of the shielding plate areconnected with the circuit pattern of the flexible printed board 60 bysoldering.

[0075] With reference to FIGS. 7 and 9, a connector 65, a connectingmember for connection with the circuit board 90, is provided at theother end of the opposite side of the flexible cable 60 a for a circuitboard LAN cable connected with the housing 30. And, various components63 for the prevention of an electromagnetic interference (EMI) such asan EMI filter conventionally used as being installed on the circuitboard 90 are installed on the flexible printed circuit 60.

[0076] Two fixing pieces 80 and 80′ are protrusively formed atpredetermined positions of both side walls 30 e and 30 f of the housing30 to fix the connector 20 at the circuit board 90.

[0077] The fixing pieces 80 and 80′ are formed at about the middleposition of the side walls 30 e and 30 f, somewhat inclined to the frontwall 30 a.

[0078] Engaging holes 82 and 82′ are formed at the center of the fixingpieces 80 and 80′, and the position of the fixing pieces 80 and 80′ maybe suitably varied according to a designing condition.

[0079] As shown in FIG. 7, the connector 20 is mounted at the circuitboard 90. Various components for functions, including components forconnection with the connector 20, are mounted at the circuit board 90.

[0080] A receiving portion 92 is formed at one end portion of thecircuit board 90 to receive the connector 20. The receiving portion 92is formed by cutting out one rear end portion of the circuit board 90,in which the housing 30 of the connector 20 is mounted.

[0081] Engaging holes 94 and 94′ are formed at positions at both endportions of the circuit board 90 corresponding to the engaging holes 82and 82′ of the fixing pieces 80 and 80′ installed at both ends of thehousing 30.

[0082] Mounting operation of the connector 20 having the construction asdescribed above will now be explained.

[0083] The connector 20 forms a cut-out portion 36 is formed at theupper portion of the rear end of the housing 30, so that everyconnection ends 40 a, 45 a and 70 a to be connected from the connector20 to the circuit board 90 are protrusively formed at the cut-outportion 36. Thus, each terminal is positioned in the cut-out portion 36without being protruded to the surface of the upper wall 30 c and therear wall 30 b of the housing 30.

[0084] The connector 20 is mounted at the circuit board 90. As shown inFIG. 7, the housing 30 is mounted at the receiving portion 92 formed atthe circuit board 90. At this time, the engaging holes 82 and 82′ of thefixing pieces 80 and 80′ formed at the left and right outer faces of thehousing 30 comes in contact with the corresponding engaging holes 94 and94′ formed at the circuit board 90, and a screw 95 is suitably insertedbetween the engaging holes 82, 82′, 94 and 94′.

[0085] Accordingly, the rear wall 30 b of the housing 30 penetrates thereceiving portion 92 and is positioned below the circuit board 90, andthe circuit board 90 is positioned at about the middle portion of thehousing 30, which may be different according to the height of the fixingpieces 80 and 80′ formed at the housing, though.

[0086] Next, the connector 65 of the flexible cable 60 a for a circuitboard LAN cable is connected to a connecting unit 64 of the circuitboard 90, and then, one end of the flexible cable 60 b of for a dockingLAN cable is connected with the connector 66 for a docking system,thereby completing mounting of the connector 20.

[0087]FIGS. 8 and 9 are drawings illustrating a dual-type connector 200in which a modem connector 129 are integrally formed with the connector20 in accordance with another embodiment of the present invention.

[0088] The dual-type connector 200 is so constructed that a modemconnector 129 is integrally formed at the right side wall 30 f of theLAN connecting connector and fixing pieces 82 and 82′ are formed at theleft side wall 30 e of the LAN connecting connector 128 and at the rightside face 202 of the modem connector 129.

[0089] A first opening 131 and a second opening 131′ are formed at thesecond rear face 110 of the lower case 104 of the body 101 in a mannerof exposing the plug inserting portion 32 of the dual-type connector200. A protrusion 133 is formed between the two openings 131 and 131′.Supporting bosses 96 and 96′ are protruded upwardly at the positioncorresponding to the engaging holes 94 and 94′ of the circuit board 90.

[0090] A third opening 130, a fourth opening 130′ and a protrusion 132are formed at the first rear face 109 of the upper case 103corresponding to the openings 131 and 131′ and the protrusion 133.

[0091] And, a connecting modem cable 210 is engaged at the rear end ofthe modem connector 129.

[0092] After the circuit board 90 is positioned inside the lower case104, when the lower wall of the dual type connector 200 is inserted inthe receiving portion 92, the fixing pieces 80 and 80′ formed at bothside walls of the dual-type connector 200 contact with the upper face ofthe circuit board 90, supporting the installation of the connector.

[0093] Thereafter, the screw 95, an engaging member, penetrates theengaging holes 82 and 82′ of the fixing pieces 80 and 80′ and theengaging holes 94 and 94′, to be fixed at the supporting bosses 96 and96′ of the lower case 104. Accordingly, the circuit board 90 and theconnector 200 are simultaneously fixed.

[0094] Besides the dual type connector 200, such fixing structure isadopted in the same manner even in case where the LAN connectingconnector 20 is solely used.

[0095] The operational effects of the connector of the present inventionare as follows.

[0096] As so far described, since the connector is positionedpenetrating the receiving portion formed at the circuit board, theconnector may be positioned at about the middle position of theconnector, to make the whole product thin.

[0097] In addition, as state above, in case where a flexible printedcircuit is used to connect the connector and the circuit board, theplurality of terminals included in the connector can be connected simplywith the circuit board and interference with other components can beminimized.

[0098] Especially, since the cut-out portion is formed at the housing sothat various terminals are not protruded outwardly of the housing, theheight of the connector is reduced to be thin, and thus, it can beadopted to a ultra-thin product.

[0099] In addition, since the connector is engaged at the circuit boardby using an additional engaging member, the connector is firmlysupported. Thus, in spite of frequent occurrence of connection, it canbe stably connected with the circuit board.

[0100] Moreover, since the connector and the circuit board are fixed atthe lower case by one-time engaging operation, its productivity can beincreased.

[0101] Furthermore, since the flexible printed circuit (FPC) is used, abead or a capacitor, components for preventing the electromagneticinterference (EMI) such as the EMI filter which has been installed foruse on the circuit board, can be mounted on the flexible printedcircuit, spatial utilization on the circuit board is increased and theperformance of the EMI is remarkably improved.

[0102] Also, since the shielding plate integrally formed at the upperface and the front face of the connector comes in contact with thebottom case of a main body of a computer, the performance of the EMI ismore enhanced.

[0103] In addition, for a connection, the flexible printed circuit isused, rather than the clamping as in the conventional art, so that theconnection is simplified, resulting in an effect that defective isconsiderably reduced.

[0104] Moreover, since each terminal is directly soldered to theflexible printed board and even a combo card is connected by cable, theproduction process is reduced and the productivity is much enhanced.

[0105] Furthermore, since the upper end portion of the connector isopened, the LED can be easily inserted thereto. Also, when the LED andthe connection terminal of the LED are defective, they can be easilyreplaced by parts. Thus, compared to the in-mold type connector, theunit cost can be reduced.

[0106] The foregoing embodiments and advantages are merely exemplary andare not to be construed as limiting the present invention. The presentteaching can be readily applied to other types of apparatuses. Thedescription of the present invention is intended to be illustrative, andnot to limit the scope of the claims. Many alternatives, modifications,and variations will be apparent to those skilled in the art. In theclaims, mane plus function clauses are intended to cover the structuredescribed herein as performing the recited function and not onlystructural equivalents but also equivalent structures.

What is claimed is:
 1. A portable electronic apparatus comprising: abox-type case having an opening at its rear face and upper face; acircuit board having a receiving portion and an engaging hole formedadjacent to the receiving portion, the circuit board being installedinside the case; a key board unit positioned at an upper surface of thecase; and a connector having a front face with a plug inserting portion,a side face having a fixing piece and a lower face, wherein the lowerface of the connector penetrates the receiving portion and is fixed atthe circuit board, and the plug inserting portion of the connector facesthe opening.
 2. The apparatus of claim 1, wherein a supporting bossprotruded upwardly at the lower face adjacent to the opening is formedat the case, the circuit board (PCB) is supported by the supportingboss, and the connector is fixed by an engaging member which penetratesan engaging hole 94 formed at the circuit board and is fixed at thesupport boss.
 3. The apparatus of claim 1, wherein the connector havingan upper face and a rear face and a connecting terminal being connectedwith the plug, a cut-out portion is formed at the portion where theupper face and the rear face meet, and a connection lead of theconnection terminal being exposed in the cut-out portion.
 4. Theapparatus of claim 3, wherein the flexible printed circuit (FPC) ofwhich one end is connected to the connection lead of the connectionterminal and the other end thereof is connected with the circuit boardelectrically connects the connector and the circuit board.
 5. Theapparatus of claim 3, wherein the upper face is opened, an LED receivinggroove is formed over the front face and the rear face, and an LED isinstalled at the LED receiving groove.
 6. The apparatus of claim 5,wherein an opening and supporting portion is supportedly formed at thefront face of the LED receiving groove in a manner of exposing the frontend of the LED.
 7. The apparatus of claim 1, wherein the engaging holeis formed at both sides centering around the receiving portion.
 8. Theapparatus of claim 1, wherein engaging hole is formed at the fixingpiece.
 9. The apparatus of claim 1, wherein the fixing pieces are formedat about the middle portion of the side faces.
 10. The apparatus ofclaim 9, wherein the fixing pieces are formed at both side faces of theconnector.
 11. A portable electronic apparatus comprising: a box-typelower case having a rear face with a first opening; a box-type uppercase having a rear face with a third opening and an upper face, theupper case being combined with the lower case; a circuit board having areceiving portion and engaging holes formed adjacent to the receivingportion, the circuit board being installed in the lower case; a keyboard unit positioned at an upper face of the upper case; a screendisplay unit rotatably supported by the upper case; and a connectorhaving a front face with a plug inserting portion, a side face having afixing piece at each face and a lower face, wherein the lower face ofthe connector penetrates the receiving portion and is fixed at thecircuit board, and the plug inserting portion of the connector faces thefirst opening and the third opening.
 12. The apparatus of claim 11,wherein supporting bosses are protruded upwardly from an inner bottomface of the lower case adjacent to the first opening and the secondopening, the circuit board is supported by the supporting bosses, andthe connector is fixed by an engaging member which penetrates the fixingpieces and the engaging hole of the circuit board and is fixed at thesupporting bosses.
 13. The apparatus of claim 11, wherein the connectorhaving an upper face and a rear face and a connection terminal which isconnected with the plug, a cut-out portion is formed at a portion wherethe upper face and the rear face meet, and a connection lead of theconnection terminal being exposed in the cut-out portion.
 14. Theapparatus of claim 13, wherein the flexible printed circuit (FPC) ofwhich one end is connected to the connection lead of the connectionterminal and the other end thereof is connected with the circuit boardelectrically connects the connector and the circuit board.
 15. Theapparatus of claim 13, wherein the upper face is opened, an LEDreceiving groove is formed over the front face and the rear face, and anLED is installed at the LED receiving groove.
 16. The apparatus of claim15, wherein the an opening and supporting portion is supportedly formedat the front face of the LED receiving groove in a manner of exposingthe front end of the LED.
 17. The apparatus of claim 15, wherein thereceiving groove is formed at both sides centering around the pluginserting portion.
 18. The apparatus of claim 11, wherein the fixingpieces are formed at about the middle portion of the side faces.
 19. Aportable electronic apparatus comprising: a box-type lower case having arear face with first and second openings; a box-type upper case havingrear face and upper face with third and fourth openings, the upper casebeing combined with said lower case; a circuit board having a receivingportion and engaging holes formed adjacent to the receiving portion, thecircuit board being installed in the lower case; a key board unitpositioned at an upper face of the upper case; a screen display unitrotatably supported by the upper case; and a connector having a frontface with first and second plug inserting portions, a lower face and aside face having a fixing piece, wherein the lower face of the connectorpenetrates the receiving portion and is fixed at the circuit board, andthe first plug inserting portion and the second plug inserting portionface the first openings.
 20. The apparatus of claim 19, whereinsupporting bosses are protruded upwardly from an inner bottom face ofthe lower case adjacent to the first opening and the second opening, thecircuit board is supported by the supporting bosses, and the connectoris fixed by an engaging member which penetrates the fixing piece and theengaging hole of the circuit board and is fixed at the supportingbosses.
 21. The apparatus of claim 19, wherein the first plug insertingportion of the connector includes a connection terminal which isconnected with a plug, a upper face and a rear face, a cut-out portionis formed at a portion where the upper face and the rear face meet, anda connection lead of the connection terminal being exposed in thecut-out portion.
 22. The apparatus of claim 21, wherein the flexibleprinted circuit (FPC) of which one end is connected to the connectionlead of the connection terminal and the other end thereof is connectedwith the circuit board electrically connects the connector and thecircuit board.
 23. The apparatus of claim 21, wherein the upper face ofthe first plug inserting portion is opened, an LED receiving groove isformed over the front face and the rear face, and an LED is installed atthe LED receiving groove.
 24. The apparatus of claim 23, wherein anopening and supporting portion is supportedly formed at the front faceof the LED receiving groove in a manner of exposing the front end of theLED.
 25. The apparatus of claim 23, wherein the receiving groove isformed at both sides centering around the first plug inserting portion.26. The apparatus of claim 19, wherein the fixing piece is formed atabout the middle portion of the side faces.
 27. A connector of thepresent invention comprising: a housing having a plug inserting portionopened at a front face, a receiving groove formed from the front face toa rear face at an upper face, a cut-out portion connected to thereceiving groove across the receiving groove at an upper portion of therear end and a fixing piece integrally formed with the housing forengagement with the circuit board at the right and the left side of thehousing; and a connector extendedly formed from the plug insertingportion to the cut-out portion, and electrically connected with a pluginserted into the plug inserting portion, one end thereof beingprotruded to the cut-out portion.
 28. The connector of claim 27, whereina connection terminals are connected by soldering with a pad formed at aflexible printed circuit, to electrically connect a docking system andthe connector.
 29. The connector of claim 28, wherein a flexible cablefor a circuit board LAN cable and a flexible cable for a docking LANcable are integrally formed at the flexible printed circuit.
 30. Theconnector of claim 27, further comprises at least one emitting membermounted inside the receiving groove, a terminal of which is protrusivelyformed to the cut-out portion, indicating the state of an electricconnection between the plug and the plug inserting portion.
 31. Theconnector of claim 30, wherein the emitting member includes an LED. 32.The connector of claim 27, further comprises a shielding plateintegrally formed along the outer circumference of the housing, to blockan electronic wave.
 33. The connector of claim 27, further comprises atleast one modem connector installed at one side of the housing.